That was the best advice I have got. Thank you!
Wow! You have no idea how easy and helpful that was!
Same exact problem. I did this and it worked! Thank you!
Thanks. I had the same problem and couldn't figure it out.
Amazing! I was going crazy trying to figure it out. Thanks!
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"I have a tmobile sim and changed to straight talk when my contract was up..."

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I have a tmobile sim and changed to straight talk when my contract was up. I put in the st. talk sim I bought..and the phone works..but terribly! Dropped calls..cannot hear on many calls as fades in and out and constantly drops the gps signals! My 3g flickers on and off all day long..every few seconds. Walmart said I may need a straight talk phone to fix this..yet the advertise using any unlocked gsm type phone! No way!!

Someone said: Even if you have a ST sim, you still have to have an unlocked phone...I am using an ATT phone but it was unlocked and then I got a ST sim and it works perfectly....same with my last phone...however, who is the Carrier for Tmobile...if its not Sprint, then that might be your problem also...the girl at Walmart told me NOT to get a phone that was used on Verizon!! Hope this helps some.

Someone said: I know exactly how you feel. i had straight talk with att iphone 3 and it worked perfectly. then my friend bought me a tmobile samsung s3. I had to purchase the tmobile straight talk sim and the service was horrible. I was under the impression that using any phone with straight talk, I would be strictly on the straight talk (att) network. NOT! straight talk att sim works on att network and straight talk tmobile sim works on tmobile network. I ended up trading my tmobile samsung s3 for an att samsung s3 and it works perfectly.

"Call straight talk and ask them to send the mms settings for your phone..."

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The reason for this is because the Settings for the MMS is not configured. MMS Settings is the one responsible for sending and receiving picture messages on your phone. What you can do is call Straight talk and ask them to send the MMS settings for your phone.

Here is the number: Straight Talk service contact us at 1-877-430-CELL (2355)

I unlocked my 3G and was able to throw in any type of t moble SIM card, and it worked just fine... just watch out for the "limits" I only used it on weekends hence it was unlimited data. they charge by DATA not minutes, so trying to check your email in Honduras and it doesn`t connect, can cost you about $564 lol.

"Straight talk customer service and have them send you a new sim card that..."

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Yes, you can change almost any phone over to straight talk. You have to call straight talk customer service and have them send you a new sim card that is compatible with their area. This should cost you just under 15 dollars and a little time to get it registered in your new phone.

For Sprint HTC EVO 4G (and select other HTC) phone users, there is a guy on Ebay that "flashes" the phone for usage with straight talk for $79.00-889.00. He even has a youtube video on what you get done. It is some serious voodoo.

Someone said: I see many people saying you can change other cdma phones over to straight talk from another carrier, but never any detailed info on how to do it, any help here? Have an HTC Hero (CDMA) looking to get working w/ straight talk

Someone said: Yes you can use any unlocked GSM phone with straighttalk. Go to their website and order a sim card. I did it 3 days ago and got a regular sim for my atrix and a micro sim for my daughter's iphone 4. Activated the unlimited plans and they work great. I had to change the APN, but it comes with instructions on how to do it. The phones have to be unlocked, you can get the unlock codes from any cell unlock website for around $10. The website is www.straighttalksim.com. Works Great!

Someone said: You can`t switch a CDMA phone carriers. Only GSM phones that use SIM cards can be switched carriers. Tmobile uses GSM so all you have to do is buy a Straight talk Sim card from their site and put it in your phone.

Someone said: contact me at rid...@hotmail.com and use the subject, I need my phone flashed. CDMA FULL Flash services from $100 and up. everything will work, phone, 3g, sms and full mms support. Guaranteed!

Someone said: CDMA phones and gsm unlocked phones can never be converted to a straightalk phone. For the reason only phones that are sold from website and walmart are being recognized by the their system...however for gsm unlocked phones, you can still use st service using the special sim. since the activation , it is the simcards serial number will needed and not the phone. all information are now being attached on the simcard and not on the actual device.
>>>>>implication......st deals with the simcard and not the device...all features will be activated the moment st simcard will have service.

https://www.facebook.com/bruce.longenecker.7 said: you can use verizon cmda phones on straight talk too, they supply a code for unlock in there bring your own phone bundle kit, i have it in my hand it has instructions on how to do it, it also comes with attandt and tmobile sims if you have there phones.

https://www.facebook.com/david.ledbetter.142 said: I have had a lot of experience with straight talk. Once you activate a straight talk SIM card, it can`t be used with ANY other phone. You have to order another straight talk SIM.

Ladygirl17 said: I have been with straight talk for over 5 years, and I have put my sim in other phones that weren`t unlocked and I didn`t need another one. A lot of times they tell u that so u will buy one

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